Typewriter



July .14, 1925.

A. MAMATEY/ TYPEWRI TER 2 Sheets-Sheet 1 Filed ,Igne 22. k1922 July 14, 1925. 1,546,143 A. MAMATEY l TYPEWRITE'R Filed Jjgne 22. 1922 2 Sheets-Sheet 2 Patented July 14, 1925.

RADDOCK, PENNSYLVANIA; POTTER TITLE & TRUST NNSYLVANIA, A. CORPORATION OF PENNSYLVANIA,

T MAMATEY, DECEASEI), ASSIGNOR T0 REMING- ALBERT MAMATEY, OF NORTH B COMPANY, OF PITTSBURGH ADMINISTRATOR OF SAID ALBER TON TYPEWRITER COMPANY, 0F ILION,

YORK.

v, PE

PATENT OFFICE.

NEW YORK, A CORPORATION 0F NEW TYPEWRITR.

Application filed June 22, 1922. seriai No.- 570,236.

T0 all 'whom 'it may (1Q-accru:

Be it known that I` Anninrr MAMATEY,

a citizen of the United States,

North Braddock, in glieny and State of vented a new and useful Typewriters, full, clear, and

the county of Pennsylvania, have in- Iinprovement in of which the following is a exact description.

residing at Alle- The present invention relates to typewriters, and more particularly to typewriters for'writinr characters re uirine diacritical marks. German, French, garian employ diacritical marks, rious accents, uinlauts, less extent. Some languages Such languages as Czechoslovak, Swedish, Polish and I-Iunsuch as vaetc. to a greater or employ as many as six diacritical marks which combined with the regular letters make as many as lifty characters.

invention these languages may with the ordina-ry American keyboard without changing the In accordance with my be written letter portion thereof. The ordinary typewriter may be in accordance with my invention readily modified to write such foreign languages.

The printing of a diacritical mark over a letter should not cause any feed of the typewriter platen. In bletypewriter, when a key is the usual form of visistruck the ribbon vibrator is actuated to move the ribbon under the type bar and then after thel character is printed, the typewriter escapenient operates to feed the platen onecharacter space along ready for the next character to be printed. In printing diacritical marks, the typewriter should be arranged so that the ribbon vibrator is actuated to move the ribbon under the capeinent should not type bar, but the esbe actuated. The diacritical mark should be printed and the platen should remain in the same place so that the letter can be then printed beneath the diacritic`al mark.

In my co-pending application 570,235, tiled'even date illustrated a specifically mechanism for achieving claims presented tures not plication.

herewith, different form of this result. The herein are restricted to feadisclosed in said co-pending ap- Serial No. I have In certain forms of typewriters, a mechanism differing somewhat from that disclosed in said application is more co nvenient to operated by all of the type keys for operat' ing the ribbon vibrator.

The present invention is illustrated as applied to the well known Corona typewriter, although it will be obvious that it may be applied to other forms oftypewriters.

In the illustrated embodiment of the invention4 y' Figure l is a longitudinal section through the typewriter;

Figure 2 is a skeleton perspective illustrating the added universal bar and its connections; and i Figure 3 is a detail view showing the usuahconnection between the escapement bar and ribbon vibrator.

In the illustrated embodiment, the two keys at the right hand end of the lowest row of keys are employed for printing the diacritical marks and are sometimes called dead keys. The Corona typewriter has three types on each type bar and employs the double shift, so that the two type controlled by the above mentioned dead keys can print six diacritical marks. The remainder of the keyboard is unaffected, and the'remaining keys operate both the escapement and the ribbon vibrator.` The dead keys which operate those type bars that carry the diacritical marks, however, operate the ribbon vibrator, but do not operate the escapement. l

In the embodiment illustrated in the drawings, showing the application of the invention to a Corona typewriter, reference numeral 1 indicates a key lever having a key la. Each key lever is pivoted on the rod 2, forming a lever of the first order and is connected to a type bar 3 by a link 5. They type bars are pivoted at' 4. The key levers, except as hereinafter indicated are provided withA fingers 6 adapted to enbars erates theesc'apement (not gage the universal bar 7 and raise it when any of the keys lJ1 is struck. The universal bar is carried by supportingarms or levers 8 at each side of the machine pivoted at the points 9. Each lever Slis connected by a link 10 to the lever mechanism 10a which operates the escapement bar 10". When a key` having a standard character, such asthe key l, is struck, the finger 6 raises the universal bar 7 and through thc lever 8, link 10 and lever mechanism 10, moves the escapement bar 10 rearwardly. The rearward movement of the escapement bar opshown) and also, in' the usual form of Corona typewriter as manufactured, operates the ribbon vibrator. The escapement bar 10b has a finger 1l which projects through the slot 12 into the ribbon vibrator actuating lever 13.` The ribbon vibrator actuating lever 13 carries the ribbon regulator 14, which has a slotted portion 15 in which is engaged the roller 16 carried on the lower arm of the bell crank lever 17. The roller 16 is guided in aslot 18 in a Support fixed on the frame. The ribbon regulator 14 may be moved to the left or right to shift the connections and cause, say, the red or black field of the ribbon to be presented to the printing point at each printing operation in case a red and black two-color ribbon is used. The lever 17 is connected to the ribbon vibrator 19 carried on the type guide 20. In the usual operation of the Corona typewriter, when a key is struck the ribbon vibratorl is raised to bring the ribbon beneath the type and the character is printed; thereafter, as the type qbar recedes, the escapement is released to feed the carrlage and platen one letter space.

The above parts are standard in the Corona portable typewriter, and no further detailed description thereof is deemed necessary, as they are understood by any one skilled in the typewriter art.

To adapt the typewriter to print diacritical marks, I cut off the finger 11 which connects the escapement bar 10b with the Iribbon vibrator actuating lever 13. I also cut off' from the dead key levers carrying the diacritical mark keys the fingers 6 which engage the universal bar 7. One of t-hese key levers is indicated at 21, being provided with a key 21a carrying three diacritical marks. The pivotal connection of the key lever 21 with the rod 2 and its connection through the link 5 to its type bar, are left undisturbed, theonly mutilation of the key lever beingl the removal of the finger 6,

which is cut away, as indicated in Figure 2. Vith the typewriter modified in accordance with my invention, when one of the standard character keys is struck it operates` the universal bar to ,release the escapement, but when one of the diacritical mark or dead keys is'struck the yuniversal bal? is not and the escapement does not character keys and of the diacritical mark keys, sothatgwhen any key is struck the 'bar 23 is raised. The bar 23 has the U-shaped upwardly offset portions 25 in order to clear the leve-rs 8, said off-set portions forming slots or openings in which the levers or arms 8 are received. The ribbon vibrator universal bar may be made of a piece of fairly stiff wire, but, of course, it could also be made differently-for instance, of sheet metal; but the easiest is to make it of wire, as shown. It has an upwardly extending arm 26 having a horizontal finger 27 extending ink front ofl and beneath the ribbon vibrator actuating lever 13. A pin 28` is riveted through a hole drilled in the ribbon vibrator actuating lever 13 and projects down so as to be engaged and pushed backwardly by the finger 27 of the ribbon vibrator universal bar 23. The

gaged by the finger 27 when the carriage-is raised by the shift keys. y

After the pin 28 is released, the ribbon vibrator actuating lever 13 is returned to its normal position by the spring 29, which is standard equipment'on the machine.

`The special ribbon vibrator universal bar 23 and the finger 27 and pin connection 28 supply the means for operating the ribbon vibrator.

The operation of the machine as modified in accordance with my invention is as follows:

When a key, such as the key 1a, having a standard character, is struck, the rear end vof the key Ylever 1 is I'aised.A The universal bar 8 which operates the escapement, and t-he special universal bar 23 for the ribbon vibrator, are both engaged and raised so that the ribbon is moved into place and the' carriage with the platen is fed forward one letter space. When, however, one of the keys, such as thekey 21a bearing diacritical marks, is struck, its key lever 21 actuates only the ribbon vibrator universal bar 23, so that the diacritical mark is printed without the operation of the escapement. In printing a letter having a diacritical mark, one of the .diacritical mark keys is first struck, making the diacritical mark. Then the standard character key bearing the'letter in question is struck, and the letter is printed beneath the diacritical mark and the escapement operates to feed the carriage with the v cludes not only platen ready for the printing of the next letter or character. It will be noted that. very little change is made in the standard parts of the machine. As many diacritical markkeys and type actions Inay be vused as desired, the only change necessary in adding more of suc-h type actions, aside from changing the t-ypes and index characters on the keys, being the cutting away` of the fingers 6 which would otherwise engage the universal bar 7 to operate the escapement. The invention may be employed in typewriters for writing the English language or scientifi'c symbols. By its use the diacritical marks for indicating pronunciation inlEnglish may be applied to the letters, or letters may be underlined Without shifting back the typewriter carriage.

The reim diacritical mark as employed in the claims is intended 'as a term of general description and not of limitation, and inthe diacritical marks used in foreign languages, but also the diacritical marks employed to indicate pronunciavso tion in English as used in dictionaries and spelling books, as well as any other markl added to a letter or character, such, for eX- ample, as an underline,- which it may be desired to have printed by the typewriter without the actuation of the escapement.

While I have illustrated my invention as applied to the well known Corona typewriter in which the invention may be readily embodied without material modification of the existing structural features of such machine, it is to be understood that the invention is not limited in its application to this particular typewriter, but may be embodied in other typewriters and in other mechanisms within the sco-pe of the following claims.

I claim:

l. In atypewriting machine, the combination of type actions including key levers of the first order formed with integral rearwardly extending lingers that may be detached therefrom to convert them into dead key levers and one or more of which fingers are detached, a universal bar arrangedabove and actuated by the remaining fingers, carriage escapement mechanism controlled by said bar, a second universal bar arrange above and controlled by all of said keylevers, and a ribbon vibrator controlled by said second universal bar.

2. In a typewriting machine, theV combination of type actions including key levers each of which is convertible into a dead key lever by 'the removal of al projection thereon, at least one of said key levers having sai projection removed, a universal bar controlled by the remaining projections on said key levers, escapement mechanism controlled by said universal bar, a ribbon vibrator, an actuating lever therefor, and a second universal bar co-operative with all of said key levers and formedintegral with its supporting arms and also with an actuating projection co-operative with a part on said actuating lever to operate the latter and the ribbon vibrator controlled thereby.

3. In a typewriting machine, the combination of type actions including key levers of the first order each of which is convertible into a dead key lever by the removal of a projection at the rear portion thereof, at least one of said key levers having such projection removed, a universal bar arranged above and controlled by the remaining projections on said key levers, escapement mechanism controlled by said universal bar, a ribbon vibrator, an actuating lever therefor, and a second universal bar arranged above and co-operative with -all of said key levers and, provided with an actuating arm cooperative with a part on said actuating lever to operate the latter and the ribbon vibrator controlled thereby.

4:. In a typewriting machine, the combination oftypev actions including key levers veach of which is convertible into a dead key lever by the removal of a projection thereon, at least one of said key levens having such projections removed, aV universal bar controlled by the remaining projections on said key levers, escapement mechanism controlled by said universal bar, a ribbon vibrator, an actuating lever therefor that shifts with theicarriage in the case shifting movements .of the latter and is provided with a depending projection, and a 'second universal bar co-operative with all of s aid key levers and provided with an actuating arm co-operative with said depending projection on the actuating lever to operate the latter and the ribbon vibrator -controlled thereby in any position to which said actuating lever may be sh'fted with the carriage:

5. A typewriter having certain standard character keys and at "least one diacritical mark key, the fingers 6 which would normally engage the universal bar 7 beingremoved from the key levers of the diacri'tical mark keys, a ribbon vibrator universal lever having a finger extending into proximity with the ribbon vibrator actuating lever 13, and a pin on said ribbon vibrator lever 13 to be engaged by said linger, the usual finger 11 being removed fro \the escape ment bar 10b, substantially as described.

6. In a typewriting machine, the-combination of type actions including key levers of the first order each of which is convertible into a dead key lever by the removal of d van integral projection at the rear portion e'scapement mechanism controlled by said universal bar, a ribbon vibrator, an actuating lever therefor that shifts with the carriage in the case shifting movements of the latter and is provided with a depending projection, a second universal bar arranged above -and co-operative'with all of said key levers and provided with supportingarms and an actuating arm co-operative with said depending projection on the actuating lever to operate the latter and the ribbon vibrator I' controlled 'thereby in any position to which saidactuating lever may be 'shifted with the carriage.

7. In a typewri'ting machine, the combina-l tion o f a unlversal bar, type actions including key levers, one or more of said t pe actions being dead vkey actions, the key vev-` openings therein to receive Vsaid supporting arms and avoidinterference 1n the operation of said universal bars together or one for actuating said universal bar, certain of 35 said key-levers being withoutsaid finger to avoid actuating said universal bar, a ribbon vibrating mechanism, and a second universal bar connected to said ribbon vibrating mechanism and operative by all of said keylevers whether provided with said fingers or not.

lin testimony whereof I have hereunto Set my hand.

ALBERT MAMATEY. 

